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Install HWIC on Cisco router 2811

Hello all,
I installed the HWIC CDMA on router 2800. I have read the document from Cisco website and I made a proposal. However, I don't know how it works.
Could you please take a look and give me your opinion? I hope I will hear something from you
Thank you

HWIC is installed on the slot 2 of the router 2800. We have wireless service with Verizon.

* Verify sgnal strength and service availability on the modem
             Show cellular  2/0/0 network
            Show cellular 2/0/0 radio
                 Show cellular 2/0/0 hardware
            Show cellular 2/0/0 all

* Activate the mode
                Cellular 2/0/0 cdma activate otaps *22899

* Configure Cellular Interface
            Conf t  : Int cellular 2/0/0
            Encap ppp
            Ppp chap password  cisco
            Asyn mode interactive
            Ip add negotiated

* Configure DDR
Router# configure terminal
 Router (config)# interface cellular 2/0/0
 Router (config-if)# dialer in-band
 Router (config-if)# dialer idle-timeout 30
 Router (config-if)# dialer string cdma
 Router (config-if)# dialer-group 1
: Router (config-if)# exit
 Router (config)# dialer-list 1 protocol ip list 1
Router (config)# ip access list 1 permit any
 Router (config-line)# line 2/0/0
 Router (config-line)# script-dialer cdma
 Router (config-line)# exit
 Router (config)# chat-script cdma "" "ATDT#777" TIMEOUT 60 "CONNECT"
 Router (config)# interface cellular 2/0/0
 Router (config)# dialer string cdma

* Configure DDR Backup
Router(config)# interface ATM2/0/0
 Router(config-if)# backup interface cellular2/0/0
 Router(config-if)# backup delay enable delay

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Jody Lemoine
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It looks like there are a few things missing for full connectivity like encapsulation and authentication.  What do you get in the logs when you turn on chat script debugging and ppp authentication debugging?
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This is just my proposal. I had this from the Cisco article. Could you please show me what I have missed.
Thank you
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Jody Lemoine
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i will try it and let you know later
Thank you